+1999-07-28 Ulrich Drepper <drepper@cygnus.com>
+
+ * misc/efgcvt.c: Use IEEE 854 formula to compute the number of digits
+ to print.
+ * misc/efgcvt_r.c: Likewise.
+ * misc/qefgcvt.c: Likewise.
+ * misc/qefgcvt_r.c: Likewise.
+ * misc/tst-efgcvt.c: Remove one test which cannot reliably be run
+ anymore.
+
1999-07-27 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* manual/math.texi (FP Function Optimization): Mention drawbacks.
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
+#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/param.h>
# define FLOAT_FMT_FLAG
/* Actually we have to write (DBL_DIG + log10 (DBL_MAX_10_EXP)) but we
don't have log10 available in the preprocessor. */
-# define MAXDIG (DBL_DIG + 3)
-# define NDIGIT_MAX DBL_DIG
+# define MAXDIG (NDIGIT_MAX + 3)
+# if DBL_MANT_DIG == 53
+# define NDIGIT_MAX 17
+# else
+/* See IEEE 854 5.6, table 2 for this formula. */
+# define NDIGIT_MAX (lrint (ceil (M_LN2 / M_LN10 * DBL_MANT_DIG + 1.0)))
+# endif
#endif
#define APPEND(a, b) APPEND2 (a, b)
# define FUNC_PREFIX
# define FLOAT_FMT_FLAG
# define FLOAT_NAME_EXT
-# define NDIGIT_MAX DBL_DIG
+# if DBL_MANT_DIG == 53
+# define NDIGIT_MAX 17
+# else
+/* See IEEE 854 5.6, table 2 for this formula. */
+# define NDIGIT_MAX (lrint (ceil (M_LN2 / M_LN10 * DBL_MANT_DIG + 1.0)))
+# endif
#endif
#define APPEND(a, b) APPEND2 (a, b)
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
+#include <float.h>
+
#define FLOAT_TYPE long double
#define FUNC_PREFIX q
#define FLOAT_FMT_FLAG "L"
/* Actually we have to write (LDBL_DIG + log10 (LDBL_MAX_10_EXP)) but
we don't have log10 available in the preprocessor. Since we cannot
assume anything on the used `long double' format be generous. */
-#define MAXDIG (LDBL_DIG + 12)
-#define NDIGIT_MAX LDBL_DIG
+#define MAXDIG (NDIGIT_MAX + 12)
+#if LDBL_MANT_DIG == 64
+# define NDIGIT_MAX 21
+#else
+/* See IEEE 854 5.6, table 2 for this formula. */
+# define NDIGIT_MAX (lrint (ceil (M_LN2 / M_LN10 * LDBL_MANT_DIG + 1.0)))
+#endif
#include "efgcvt.c"
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
+#include <float.h>
+
#define FLOAT_TYPE long double
#define FUNC_PREFIX q
#define FLOAT_FMT_FLAG "L"
#define FLOAT_NAME_EXT l
-# define NDIGIT_MAX LDBL_DIG
+#if LDBL_MANT_DIG == 64
+# define NDIGIT_MAX 21
+#else
+/* See IEEE 854 5.6, table 2 for this formula. */
+# define NDIGIT_MAX (lrint (ceil (M_LN2 / M_LN10 * LDBL_MANT_DIG + 1.0)))
+#endif
#include "efgcvt_r.c"
{ 123.01, -4, 3, "" },
{ 126.71, -4, 3, "" },
{ 0.0, 4, 1, "0000" },
- { 92.0, 16, 2, "920000000000000" },
/* -1.0 is end marker. */
{ -1.0, 0, 0, "" }
};
/* This is an extension in the Unix standard which does not directly
violate ISO C. */
- memset (&__no_r_state, '\0', siyeof __no_r_state);
+ memset (&__no_r_state, '\0', sizeof __no_r_state);
result = __wcsmbs_gconv_fcts.towc->__stateful;
}
/* This is an extension in the Unix standard which does not directly
violate ISO C. */
- memset (&__no_r_state, '\0', siyeof __no_r_state);
+ memset (&__no_r_state, '\0', sizeof __no_r_state);
return __wcsmbs_gconv_fcts.tomb->__stateful;
}